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- W282313309 abstract "The objective of this program is to identify advanced coal liquefaction catalyst and operating conditions for use in optimized, two-stage direct coal liquefaction process applications and to experimentally test catalysts in a two-stage reaction system for supporting the improvement of this process. A development plan consisting of eight project tasks has been formulated and is summarized as follows: Task 1 - project work plan; Task 2 - literature survey; Task 3 - feed materials specification; Task 4 - continuous aging unit modification; Task 5 - thermal reaction process variable study; Task 6 - two-stage optimization; Task 7 - project coodination; and Task 8 - ebullated bed testing. This report summarizes progress in tasks 5 and 6 during the last quarter. Some of the conclusions are as follows: (1) Two-stage liquefaction of Illinois No. 6 coal with a high-severity first stage dissolver and low space velocity hydrotreater offers substantial advantages over one-stage liquefaction on Amoco's continuous coal liquefaction pilot plant. Improvements are observed for solubility conversions, resid conversion and heteroatom removal. (2) The performance of the unit in high-severity first stage configuration does not degrade over the seven day period of the experiment. This indicates that the catalyst is not deactivatingmore » over that period. (3) Operation of the dissolver at low severity produces results that are not significantly better (and in some cases, worse) than one-stage processing. (4) Preliminary data indicate that two-stage liquefaction of Wyodak coal also will be advantageous compared to one-stage processing. 2 refs., 13 figs.« less" @default.
- W282313309 created "2016-06-24" @default.
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- W282313309 date "1984-09-01" @default.
- W282313309 modified "2023-09-27" @default.
- W282313309 title "Advanced coal liquefaction catalyst development. Quarterly progress report No. 9, October 1-December 31, 1983" @default.
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